Millbr



(No Model.)

PADLOGK.

Patented Apr. 10, 1894.

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4 Igzgr UNITED STATES PATENT anion.

BENJAMIN F. LOUGHMILLER, OF ASPEN, COLORADO, ASSIGNOR, BY MESNEASSIGNMENTS, OF ONE-HALF TO THOMAS LATTA AND J. W. WIST, OF

SAME PLACE.

PAD LOCK.

SPECIFICATION forming part of Letters Patent No. 517,956, dated April10, 18941..4

Application led April 22, 1893.

To all whom it may concern..- l

Be it known that I, BENJAMIN F. LOUGH- MILLER, a citizen of the UnitedStates,resid` ing at Aspen, in the county of .Pitkin and State ofColorado, have invented a new and useful Padlock, of which ythefollowing is a specification.

My invention Vrelates to improvements in padlocks, the objects in viewbeing to provide a lock in which the rear plate or plate con-t tainingthe keyhole is so arranged as to render it impossible of detachment fromthe cas,- ing or shell and thus guard againstv tampering with the lock.-

In carrying out my invention I form the member which performs thefunction ofA a' rear plate as an integral part of a frame in which thetumblers and operative parts of the lock are mounted, whereby when theshackle of the lock is engaged by the tumblers, said frame carrying thisrear plate is firmly locked thereto and cannot be withdrawn except afterdisengagement of the tumblers from the shackle. y

Further objects and advantages of my in-` vention will appear in thefollowing description and the novel features thereof will beVparticularly pointed out in the claims.

In the drawings: Figure 1 is a sectional view taken axially of alock'embodying my invention said section being taken/parallelwith'-,thev plane of the shackle. Fig. 2 is a similar v iew takenk atright angles to the plane of the shackle. Fig. 3 is a perspective viewof the frame and tumblers. Fig. Ltisabottom plan view of the lock. Fig.5 is a vertical sectional view at right angles to the plane oftheshackle showing each tumbler provided with an independent spring. e

Similar numerals of reference indicate corresponding parts in theseveral viewsof the drawings.

1 represents the shell or casing of the lock i which is provided, in theconstruction illustrated, with a rectangular elongated recess 2,openings or sockets 3 being formed in .the integral top of the shell orcasing to receive the legs of the shackle 4., such shackle being of theordinary orY any approved construction. These openings or sockets 3 aresubstantially outside ofthe side walls of the recess andA Santino.471,492. (No man.)

communicate with the upper ends of grooves or channels 5 which areformed in said side` walls, whereby whentlie shackle is arranged in itsoperative position in the shell or casing its legs are housed upon threesides in the said grooves or channels whereby only their inner notchedsurfaces are exposed. These grooves or channels extend through tothelower surwhich are mounted the rotatable tumblers l12. These tumblersand the Webs and end plate are provided with registering keyholeopenings to receive the keyl13 which is shown in Fig.'1. The end plateas will be observed fits snugly in the lower end Aof the rectangularopening of the shell or casing and is provided with integral lateralears 14-which fit inthe lower terminals of the channels or grooves inthe side walls of the recess '2.

The peculiar form and construction of the tumblers and the number oftumblers form no part of my invention and may be varied as in the locksnow in use to produce variety, &c. From the above description inconnection with the drawings, it will be understood that when the legsof the shackle are introduced into the openingsor sockets in thel top ofthe of the tumblers, the` frame by which said.

tumblers are carried and of which the bottom plate forms an integralpart will belocked securely to theshackle and cannot bedetached orremoved except by breaking the shackle or the shell. Furthermore, theframe which fits at its lower end snugly in the recess of the shell orcasing affords lno* means for the engagement of a lock-breaking toolsuch as may be employed in connection with a padlock rhaving the bottomplate secured in place by rivets or other similar devices.

It will be understood furthermore that while I have illustrated a frameof a rectangular shape, such feature forms no essential part of Vtheside bars; and transverse Webs ll between IOO my invention and may bevaried at the will of the manufacturer.

The Webs whereby the tumblers are separated are tted at their ends withtransverse grooves in the inner surfaces of the side bars of the framewhereby they are removable. The terminal studs which extend throughperforations in the upper end of the shell or casing are designed to beheaded or riveted to prevent the members ot' the lock from becomingseparated When the shackle is unlocked.

In Fig. 5 I have shown a construction in which each tumbler is providedwith an operating spring l5 to maintain the same inits operativeposition, but I may employ springs only in connection with the bottomtumbler, as shown in Figs. l, 2, and 3.

Various changes in the form, proportion and minor details ofconstruction may be resorted to Withoutdepartingfrom the spirit orsacrificing the advantages of my invention.

Having thus described my invention, what I claim is 1. In apadlock, thecombination with a hollow shell or casing, and a shackle having its legsfit-ted in openings or sockets in the top thereof, of a frame tiltedsnugly within said shell or casing and having a bottom plate whichcloses the lower end or mouth of the opening in the shell or casing, andalso havingparallel spaced Webs, the bottom plate and Webs beingprovided with registering openings, and tumblers fitting loosely betweenthe webs, held in place by the side walls of the shell or casing andprovided with openings registering with those in the webs and bottomplate for the reception of a key, substantially as specified.

2. In a padlock, the combination with a shell or casing provided with anelongated recess, openings or sockets in the upper end and grooves orchannels in the 4side walls of saidl recess, and a shackle having itslegstted in said openings or sockets and adapted to lie in the groovesor channels with their inner notched surfaces exposed, of a frame ttedsnugly into said recess and provided with lateral ears to close thelower ends of the grooves or channels in the side Walls of said recessand tumblers mounted upon and carried by said frame, substantially asspecified.

3. In a padlock, the combination with a hollow shell or casing and ashackle having its legs fitted in openings or sockets in the top of saidshell or casing, of a frame fitting snugly in the interior of said shellor casing and having side bars, a bottom plate and transverse Webs, andtumblers rotatably mounted upon said traine between the webs and adaptedto project at their peripheries beyond the side edges of such webs toengage the notches of the shackle, substantially as specied.

In testimony that I claim the foregoing as my own I have hereto affixedmy signature in the presence of two witnesses.

BENJAMIN F. LOUGIIMILLER.

Witnesses:

H. M. MCKAY, CHARLES A. MILLER.

